From: root Date: Mon, 16 Dec 2013 05:35:46 +0000 Subject: Add most active orgs ranking X-Git-Url: https://maxious.lambdacomplex.org/git/?p=ckanext-dga-stats.git&a=commitdiff&h=cdfc63ae6e3fd14ffa90c0155d213298dd2ffa76 --- Add most active orgs ranking --- --- /dev/null +++ b/.gitignore @@ -1,1 +1,36 @@ +*.py[cod] +# C extensions +*.so + +# Packages +*.egg +*.egg-info +dist +build +eggs +parts +bin +var +sdist +develop-eggs +.installed.cfg +lib +lib64 + +# Installer logs +pip-log.txt + +# Unit test / coverage reports +.coverage +.tox +nosetests.xml + +# Translations +*.mo + +# Mr Developer +.mr.developer.cfg +.project +.pydevproject + --- /dev/null +++ b/README.md @@ -1,1 +1,9 @@ +# ckanext-dga-stats +Fork of CKAN's built-in Statistics plugin modified for data.gov.au + +* Remove private datasets from all statistics (except top users) +* Add summary page +* Add activity summary page +* Add organisation public/private dataset count page + --- /dev/null +++ b/ckanext/__init__.py @@ -1,1 +1,8 @@ +# this is a namespace package +try: + import pkg_resources + pkg_resources.declare_namespace(__name__) +except ImportError: + import pkgutil + __path__ = pkgutil.extend_path(__path__, __name__) --- a/ckanext/dga-stats/__init__.py +++ /dev/null @@ -1,2 +1,1 @@ -# empty file needed for pylons to find templates in this directory --- a/ckanext/dga-stats/controller.py +++ /dev/null @@ -1,51 +1,1 @@ -import ckan.plugins as p -from ckan.lib.base import BaseController, config -import stats as stats_lib -import ckan.lib.helpers as h -class StatsController(BaseController): - - def index(self): - c = p.toolkit.c - stats = stats_lib.Stats() - rev_stats = stats_lib.RevisionStats() - c.top_rated_packages = stats.top_rated_packages() - c.most_edited_packages = stats.most_edited_packages() - c.largest_groups = stats.largest_groups() - c.top_tags = stats.top_tags() - c.top_package_owners = stats.top_package_owners() - c.new_packages_by_week = rev_stats.get_by_week('new_packages') - c.deleted_packages_by_week = rev_stats.get_by_week('deleted_packages') - c.num_packages_by_week = rev_stats.get_num_packages_by_week() - c.package_revisions_by_week = rev_stats.get_by_week('package_revisions') - - # Used in the legacy CKAN templates. - c.packages_by_week = [] - - # Used in new CKAN templates gives more control to the templates for formatting. - c.raw_packages_by_week = [] - for week_date, num_packages, cumulative_num_packages in c.num_packages_by_week: - c.packages_by_week.append('[new Date(%s), %s]' % (week_date.replace('-', ','), cumulative_num_packages)) - c.raw_packages_by_week.append({'date': h.date_str_to_datetime(week_date), 'total_packages': cumulative_num_packages}) - - c.all_package_revisions = [] - c.raw_all_package_revisions = [] - for week_date, revs, num_revisions, cumulative_num_revisions in c.package_revisions_by_week: - c.all_package_revisions.append('[new Date(%s), %s]' % (week_date.replace('-', ','), num_revisions)) - c.raw_all_package_revisions.append({'date': h.date_str_to_datetime(week_date), 'total_revisions': num_revisions}) - - c.new_datasets = [] - c.raw_new_datasets = [] - for week_date, pkgs, num_packages, cumulative_num_packages in c.new_packages_by_week: - c.new_datasets.append('[new Date(%s), %s]' % (week_date.replace('-', ','), num_packages)) - c.raw_new_datasets.append({'date': h.date_str_to_datetime(week_date), 'new_packages': num_packages}) - - return p.toolkit.render('ckanext/stats/index.html') - - def leaderboard(self, id=None): - c = p.toolkit.c - c.solr_core_url = config.get('ckanext.stats.solr_core_url', - 'http://solr.okfn.org/solr/ckan') - return p.toolkit.render('ckanext/stats/leaderboard.html') - - --- a/ckanext/dga-stats/plugin.py +++ /dev/null @@ -1,28 +1,1 @@ -from logging import getLogger -import ckan.plugins as p - -log = getLogger(__name__) - -class StatsPlugin(p.SingletonPlugin): - '''Stats plugin.''' - - p.implements(p.IRoutes, inherit=True) - p.implements(p.IConfigurer, inherit=True) - - def after_map(self, map): - map.connect('stats', '/stats', - controller='ckanext.stats.controller:StatsController', - action='index') - map.connect('stats_action', '/stats/{action}', - controller='ckanext.stats.controller:StatsController') - return map - - def update_config(self, config): - templates = 'templates' - if p.toolkit.asbool(config.get('ckan.legacy_templates', False)): - templates = 'templates_legacy' - p.toolkit.add_template_directory(config, templates) - p.toolkit.add_public_directory(config, 'public') - p.toolkit.add_resource('public/ckanext/stats', 'ckanext_stats') - --- a/ckanext/dga-stats/public/.gitignore +++ /dev/null @@ -1,3 +1,1 @@ -**.min.js -**.min.css --- a/ckanext/dga-stats/public/__init__.py +++ /dev/null @@ -1,8 +1,1 @@ -# this is a namespace package -try: - import pkg_resources - pkg_resources.declare_namespace(__name__) -except ImportError: - import pkgutil - __path__ = pkgutil.extend_path(__path__, __name__) --- a/ckanext/dga-stats/public/ckanext/__init__.py +++ /dev/null @@ -1,8 +1,1 @@ -# this is a namespace package -try: - import pkg_resources - pkg_resources.declare_namespace(__name__) -except ImportError: - import pkgutil - __path__ = pkgutil.extend_path(__path__, __name__) --- a/ckanext/dga-stats/public/ckanext/stats/__init__.py +++ /dev/null @@ -1,8 +1,1 @@ -# this is a namespace package -try: - import pkg_resources - pkg_resources.declare_namespace(__name__) -except ImportError: - import pkgutil - __path__ = pkgutil.extend_path(__path__, __name__) --- a/ckanext/dga-stats/public/ckanext/stats/app.js +++ /dev/null @@ -1,60 +1,1 @@ -jQuery(document).ready(function($) { - $('form').submit(function(e) { - e.preventDefault(); - attribute = $('#form-attribute').val(); - loadSolr(attribute); - }) - // default! (also in html) - loadSolr('tags'); - function loadSolr(attribute) { - var url = solrCoreUrl + '/select?indent=on&wt=json&facet=true&rows=0&indent=true&facet.mincount=1&facet.limit=30&q=*:*&facet.field=' + attribute; - function handleSolr(data) { - var results = []; - ourdata = data.facet_counts.facet_fields[attribute]; - var newrow = {}; - for (ii in ourdata) { - if (ii % 2 == 0) { - newrow.name = ourdata[ii]; - if (!newrow.name) { - newrow.name = '[Not Specified]'; - } - } else { - newrow.count = ourdata[ii]; - results.push(newrow); - newrow = {}; - } - } - display(results); - } - - $.ajax({ - url: url, - success: handleSolr, - dataType: 'jsonp', - jsonp: 'json.wrf' - }); - } - - function display(results) { - var list = $('#category-counts'); - list.html(''); - if (results.length == 0) { - return - } - var maximum = results[0]['count']; - for(ii in results) { - maximum = Math.max(maximum, results[ii]['count']); - } - - $.each(results, function(idx, row) { - var newentry = $('
  • '); - newentry.append($('' + row['name'] + '')); - newentry.append($('' + row['count'] + '')); - var percent = 100 * row['count'] / maximum; - newentry.append($('')); - list.append(newentry); - }); - } -}); - --- a/ckanext/dga-stats/public/ckanext/stats/css/stats.css +++ /dev/null @@ -1,17 +1,1 @@ -.tab-content h2 { - margin-bottom: 12px; -} -.js .tab-content { - padding-top: 20px; - padding-bottom: 20px; - margin-top: 0; -} - -.module-plot-canvas { - display: block; - width: 650px; - height: 300px; - margin: 20px 0; -} - --- a/ckanext/dga-stats/public/ckanext/stats/demo.html +++ /dev/null @@ -1,26 +1,1 @@ - - - - - - - - -

    CKAN Dataset Leaderboard

    -

    Choose a dataset attribute and find out which categories in that area have the most datasets. E.g. tags, groups, license, res_format, country.

    -
    - - - -
    - -
    -
      -
    -
    - - - --- a/ckanext/dga-stats/public/ckanext/stats/javascript/modules/plot.js +++ /dev/null @@ -1,210 +1,1 @@ -/* A quick module for generating flot charts from an HTML table. Options can - * be passed directly to flot using the data-module-* attributes. The tables - * are currently expected to be marked up as follows: - * - * - * - * - * - * - * - * - * - * - * - * - * - * - * - * ... - * - *
    X AxisSeries A LegendSeries B Legend
    X ValueSeries A Y ValueSeries B Y Value
    - * - * Points are pulled out of the th/td elements using innerHTML or by looking - * for a data-value attribute. This is useful when a more readable value - * needs to be used in the elements contents (eg. dates). A data-type attribute - * can also be applied to parse the value. Only data-type="date" is currently - * supported and expects data-value to be a unix timestamp. - */ -this.ckan.module('plot', function (jQuery, _) { - return { - /* Holds the jQuery.plot() object when created */ - graph: null, - /* Holds the canvas container when created */ - canvas: null, - - /* Default options */ - options: { - xaxis: {}, - yaxis: {}, - legend: {position: 'nw'}, - colors: ['#ffcc33', '#ff8844'] - }, - - /* Sets up the canvas element and parses the table. - * - * Returns nothing. - */ - initialize: function () { - jQuery.proxyAll(this, /_on/); - - if (!this.el.is('table')) { - throw new Error('CKAN module plot can only be called on table elements'); - } - - this.setupCanvas(); - - // Because the canvas doesn't render correctly unless visible we must - // listen for events that reveal the canvas and then try and re-render. - // Currently the most common of these is the "shown" event triggered by - // the tabs plugin. - this.sandbox.body.on("shown", this._onShown); - this.data = this.parseTable(this.el); - - this.draw(); - }, - - /* Removes event handlers when the module is removed from the DOM. - * - * Returns nothing. - */ - teardown: function () { - this.sandbox.body.off("shown", this._onShown); - }, - - /* Creates the canvas wrapper and removes the table from the document. - * - * Returns nothing. - */ - setupCanvas: function () { - this.canvas = jQuery('
    '); - this.el.replaceWith(this.canvas); - }, - - /* Attempts to draw the chart if the canvas is visible. If not visible the - * graph does not render correctly. So we keep trying until it is. - * - * Examples - * - * module.draw(); - * - * Returns nothing. - */ - draw: function () { - if (!this.drawn && this.canvas.is(':visible')) { - this.graph = jQuery.plot(this.canvas, this.data, this.options); - } - }, - - /* Parses an HTML table element to build the data array for the chart. - * The thead element provides the axis and labels for the series. The - * first column in the tbody is used for the x-axis and subsequent - * columns are the series. - * - * table - A table element to parse. - * - * Examples - * - * module.parseTable(module.el); - * - * Returns data object suitable for use in jQuery.plot(). - */ - parseTable: function (table) { - var data = []; - var _this = this; - - var headings = table.find('thead tr:first th').map(function () { - return this.innerHTML; - }); - - table.find('tbody tr').each(function (row) { - var element = jQuery(this); - var x = []; - - x[row] = _this.getValue(element.find('th')); - - element.find('td').each(function (series) { - var value = _this.getValue(this); - var label = headings[series + 1]; - - data[series] = data[series] || {data: [], label: label}; - data[series].data[row] = [x[row], value]; - }); - }); - - return data; - }, - - /* Retrieves the value from a td/th element. This first looks for a - * data-value attribute on the element otherwise uses the element - * text contents. - * - * A data-type attribute can also be provided to tell the module how - * to deal with the element. By default we let jQuery.data() handle - * the parsing but this can provide additional data. See .parseValue() - * for more info. - * - * cell - An element to extract a value from. - * - * Examples - * - * var element = jQuery('Ten'); - * module.getValue(element); //=> 10 - * - * var element = jQuery('20'); - * module.getValue(element); //=> 20 - * - * var element = jQuery('1343747094'); - * module.getValue(element); //=> - * - * Returns the parsed value. - */ - getValue: function (cell) { - var item = cell instanceof jQuery ? cell : jQuery(cell); - var type = item.data('type') || 'string'; - var value = item.data('value') || item.text(); - return this.parseValue(value, type); - }, - - /* Provides the ability to further format a value. - * - * If date is provided as a type then it expects value to be a unix - * timestamp in seconds. - * - * value - The value extracted from the element. - * type - A type string, currently only supports "date". - * - * Examples - * - * module.parseValue(10); // => 10 - * module.parseValue("cat"); // => "cat" - * module.parseValue(1343747094, 'date'); // => - * - * Returns the parsed value. - */ - parseValue: function (value, type) { - if (type === 'date') { - value = new Date(parseInt(value, 10) * 1000); - if (!value) { - value = 0; - } - } - return value; - }, - - /* Event handler for when tabs are toggled. Determines if the canvas - * resides in the shown element and attempts to re-render. - * - * event - The shown event object. - * - * Returns nothing. - */ - _onShown: function (event) { - if (!this.drawn && jQuery.contains(jQuery(event.target.hash)[0], this.canvas[0])) { - this.draw(); - } - } - }; -}); - --- a/ckanext/dga-stats/public/ckanext/stats/javascript/modules/stats-nav.js +++ /dev/null @@ -1,37 +1,1 @@ -/* Quick module to enhance the Bootstrap tags plug-in to update the url - * hash when a tab changes to allow the user to bookmark the page. - * - * Each tab id must use a prefix which which will be stripped from the hash. - * This is to prevent the page jumping when the hash fragment changes. - * - * prefix - The prefix used on the ids. - * - */ -this.ckan.module('stats-nav', { - /* An options object */ - options: { - prefix: 'stats-' - }, - /* Initializes the module and sets up event listeners. - * - * Returns nothing. - */ - initialize: function () { - var location = this.sandbox.location; - var prefix = this.options.prefix; - var hash = location.hash.slice(1); - var selected = this.$('[href^=#' + prefix + hash + ']'); - - // Update the hash fragment when the tab changes. - this.el.on('shown', function (event) { - location.hash = event.target.hash.slice(prefix.length + 1); - }); - - // Show the current tab if the location provides one. - if (selected.length) { - selected.tab('show'); - } - } -}); - --- a/ckanext/dga-stats/public/ckanext/stats/resource.config +++ /dev/null @@ -1,13 +1,1 @@ -[IE conditional] -lte IE 8 = vendor/excanvas.js - -[groups] - -stats = - css/stats.css - vendor/excanvas.js - vendor/jquery.flot.js - javascript/modules/plot.js - javascript/modules/stats-nav.js - --- a/ckanext/dga-stats/public/ckanext/stats/style.css +++ /dev/null @@ -1,60 +1,1 @@ -div.category-counts { -} -div.category-counts-over-time { - clear: both; -} - -/*************************** - * CHART LISTS - **************************/ - -.chartlist { - float: left; - border-top: 1px solid #EEE; - width: 90%; - padding-left: 0; - margin-left: 0; -} - -.chartlist li { - position: relative; - display: block; - border-bottom: 1px solid #EEE; - _zoom: 1; -} -.chartlist li a { - display: block; - padding: 0.4em 4.5em 0.4em 0.5em; - position: relative; - z-index: 2; -} -.chartlist .count { - display: block; - position: absolute; - top: 0; - right: 0; - margin: 0 0.3em; - text-align: right; - color: #999; - font-weight: bold; - font-size: 0.875em; - line-height: 2em; - z-index: 999; -} -.chartlist .index { - display: block; - position: absolute; - top: 0; - left: 0; - height: 100%; - background: #B8E4F5; - text-indent: -9999px; - overflow: hidden; - line-height: 2em; -} -.chartlist li:hover { - background: #EFEFEF; -} - - --- a/ckanext/dga-stats/public/ckanext/stats/test/fixtures/table.html +++ /dev/null @@ -1,31 +1,1 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    X AxisSeries A LegendSeries B Legend
    Apr 09, 2007207
    Apr 16, 2007126
    Apr 23, 20072712
    - --- a/ckanext/dga-stats/public/ckanext/stats/test/index.html +++ /dev/null @@ -1,60 +1,1 @@ - - - - - Mocha Tests - - - -
    -
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --- a/ckanext/dga-stats/public/ckanext/stats/test/spec/modules/plot.spec.js +++ /dev/null @@ -1,137 +1,1 @@ -/*globals describe before beforeEach afterEach it assert sinon ckan jQuery */ -describe('ckan.module.PlotModule()', function () { - var PlotModule = ckan.module.registry['plot']; - before(function (done) { - var _this = this; - - jQuery.get('./fixtures/table.html', function (html) { - _this.template = html; - done(); - }); - }); - - beforeEach(function () { - this.el = jQuery(this.template).appendTo(this.fixture); - this.sandbox = ckan.sandbox(); - this.sandbox.body = this.fixture; - this.module = new PlotModule(this.el, {}, this.sandbox); - }); - - afterEach(function () { - this.module.teardown(); - }); - - describe('.initialize()', function () { - it('should setup the canvas element', function () { - var target = sinon.stub(this.module, 'setupCanvas', this.module.setupCanvas); - - this.module.initialize(); - assert.called(target); - }); - - it('should draw the graph', function () { - var target = sinon.stub(this.module, 'draw'); - - this.module.initialize(); - assert.called(target); - }); - - it('should listen for "shown" events on the body', function () { - var target = sinon.stub(this.sandbox.body, 'on'); - - this.module.initialize(); - assert.called(target); - assert.calledWith(target, "shown", this.module._onShown); - }); - }); - - describe('.teardown()', function () { - it('should remove "shown" listeners from the body', function () { - var target = sinon.stub(this.sandbox.body, 'off'); - - this.module.teardown(); - assert.called(target); - assert.calledWith(target, "shown", this.module._onShown); - }); - }); - - describe('.setupCanvas()', function () { - it('should create the .canvas element', function () { - this.module.setupCanvas(); - - assert.isDefined(this.module.canvas); - assert.isDefined(this.module.canvas.is('div')); - }); - - it('should replace the .el with the .canvas', function () { - this.module.setupCanvas(); - assert.ok(jQuery.contains(this.sandbox.body[0], this.module.canvas[0])); - }); - }); - - describe('.draw()', function () { - beforeEach(function () { - this.plot = {}; - this.module.canvas = jQuery('
    ').appendTo(this.fixture); - jQuery.plot = sinon.stub().returns(this.plot); - }); - - it('should call jQuery.plot() if the canvas is visible', function () { - this.module.draw(); - - assert.called(jQuery.plot); - assert.calledWith(jQuery.plot, this.module.canvas, this.module.data, this.module.options); - }); - - it('should assign the .graph property', function () { - this.module.draw(); - assert.strictEqual(this.module.graph, this.plot); - }); - - it('should not call jQuery.plot() if the canvas is not visible', function () { - this.module.canvas.hide(); - this.module.draw(); - - assert.notCalled(jQuery.plot); - }); - }); - - describe('.parseTable(table)', function () { - it('should parse the contents of the provided table', function () { - var target = this.module.parseTable(this.module.el); - - assert.deepEqual(target, [{ - label: 'Series A Legend', - data: [ - [new Date(1176073200000), "20"], - [new Date(1176678000000), "12"], - [new Date(1177282800000), "27"] - ] - }, { - label: 'Series B Legend', - data: [ - [new Date(1176073200000), "7"], - [new Date(1176678000000), "6"], - [new Date(1177282800000), "12"] - ] - }]); - }); - }); - - describe('.getValue(cell)', function () { - it('should extract the value from a table cell'); - it('should use the data-value attribute if present'); - it('should parse the value using the data-type'); - }); - - describe('.parseValue(value, type)', function () { - it('should create a date object if type == "date"'); - it('should return the value if the type is not recognised'); - }); - - describe('._onShown(event)', function () { - it('should call .draw() if the event.target contains the canvas'); - }); -}); - --- a/ckanext/dga-stats/public/ckanext/stats/test/spec/modules/stats-nav.spec.js +++ /dev/null @@ -1,45 +1,1 @@ -/*globals describe before beforeEach afterEach it assert sinon ckan jQuery */ -describe('ckan.module.StatsNavModule()', function () { - var StatsNavModule = ckan.module.registry['stats-nav']; - beforeEach(function () { - this.el = document.createElement('div'); - this.sandbox = ckan.sandbox(); - this.sandbox.body = this.fixture; - this.sandbox.location = { - href: '', - hash: '' - }; - this.module = new StatsNavModule(this.el, {}, this.sandbox); - - jQuery.fn.tab = sinon.stub(); - }); - - afterEach(function () { - this.module.teardown(); - - delete jQuery.fn.tab; - }); - - describe('.initialize()', function () { - it('should listen for shown events and update the location.hash', function () { - var anchor = jQuery('').attr('href', '#stats-test')[0]; - - this.module.initialize(); - this.module.el.trigger({type: 'shown', target: anchor}); - - assert.equal(this.sandbox.location.hash, 'test'); - }); - - it('should select the tab from the location hash on init', function () { - var anchor = jQuery('').attr('href', '#stats-test').appendTo(this.el); - - this.sandbox.location.hash = '#test'; - this.module.initialize(); - - assert.called(jQuery.fn.tab); - assert.calledWith(jQuery.fn.tab, 'show'); - }); - }); -}); - --- a/ckanext/dga-stats/public/ckanext/stats/vendor/excanvas.js +++ /dev/null @@ -1,1428 +1,1 @@ -// Copyright 2006 Google Inc. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Known Issues: -// -// * Patterns only support repeat. -// * Radial gradient are not implemented. The VML version of these look very -// different from the canvas one. -// * Clipping paths are not implemented. -// * Coordsize. The width and height attribute have higher priority than the -// width and height style values which isn't correct. -// * Painting mode isn't implemented. -// * Canvas width/height should is using content-box by default. IE in -// Quirks mode will draw the canvas using border-box. Either change your -// doctype to HTML5 -// (http://www.whatwg.org/specs/web-apps/current-work/#the-doctype) -// or use Box Sizing Behavior from WebFX -// (http://webfx.eae.net/dhtml/boxsizing/boxsizing.html) -// * Non uniform scaling does not correctly scale strokes. -// * Filling very large shapes (above 5000 points) is buggy. -// * Optimize. There is always room for speed improvements. - -// Only add this code if we do not already have a canvas implementation -if (!document.createElement('canvas').getContext) { - -(function() { - - // alias some functions to make (compiled) code shorter - var m = Math; - var mr = m.round; - var ms = m.sin; - var mc = m.cos; - var abs = m.abs; - var sqrt = m.sqrt; - - // this is used for sub pixel precision - var Z = 10; - var Z2 = Z / 2; - - /** - * This funtion is assigned to the elements as element.getContext(). - * @this {HTMLElement} - * @return {CanvasRenderingContext2D_} - */ - function getContext() { - return this.context_ || - (this.context_ = new CanvasRenderingContext2D_(this)); - } - - var slice = Array.prototype.slice; - - /** - * Binds a function to an object. The returned function will always use the - * passed in {@code obj} as {@code this}. - * - * Example: - * - * g = bind(f, obj, a, b) - * g(c, d) // will do f.call(obj, a, b, c, d) - * - * @param {Function} f The function to bind the object to - * @param {Object} obj The object that should act as this when the function - * is called - * @param {*} var_args Rest arguments that will be used as the initial - * arguments when the function is called - * @return {Function} A new function that has bound this - */ - function bind(f, obj, var_args) { - var a = slice.call(arguments, 2); - return function() { - return f.apply(obj, a.concat(slice.call(arguments))); - }; - } - - function encodeHtmlAttribute(s) { - return String(s).replace(/&/g, '&').replace(/"/g, '"'); - } - - function addNamespacesAndStylesheet(doc) { - // create xmlns - if (!doc.namespaces['g_vml_']) { - doc.namespaces.add('g_vml_', 'urn:schemas-microsoft-com:vml', - '#default#VML'); - - } - if (!doc.namespaces['g_o_']) { - doc.namespaces.add('g_o_', 'urn:schemas-microsoft-com:office:office', - '#default#VML'); - } - - // Setup default CSS. Only add one style sheet per document - if (!doc.styleSheets['ex_canvas_']) { - var ss = doc.createStyleSheet(); - ss.owningElement.id = 'ex_canvas_'; - ss.cssText = 'canvas{display:inline-block;overflow:hidden;' + - // default size is 300x150 in Gecko and Opera - 'text-align:left;width:300px;height:150px}'; - } - } - - // Add namespaces and stylesheet at startup. - addNamespacesAndStylesheet(document); - - var G_vmlCanvasManager_ = { - init: function(opt_doc) { - if (/MSIE/.test(navigator.userAgent) && !window.opera) { - var doc = opt_doc || document; - // Create a dummy element so that IE will allow canvas elements to be - // recognized. - doc.createElement('canvas'); - doc.attachEvent('onreadystatechange', bind(this.init_, this, doc)); - } - }, - - init_: function(doc) { - // find all canvas elements - var els = doc.getElementsByTagName('canvas'); - for (var i = 0; i < els.length; i++) { - this.initElement(els[i]); - } - }, - - /** - * Public initializes a canvas element so that it can be used as canvas - * element from now on. This is called automatically before the page is - * loaded but if you are creating elements using createElement you need to - * make sure this is called on the element. - * @param {HTMLElement} el The canvas element to initialize. - * @return {HTMLElement} the element that was created. - */ - initElement: function(el) { - if (!el.getContext) { - el.getContext = getContext; - - // Add namespaces and stylesheet to document of the element. - addNamespacesAndStylesheet(el.ownerDocument); - - // Remove fallback content. There is no way to hide text nodes so we - // just remove all childNodes. We could hide all elements and remove - // text nodes but who really cares about the fallback content. - el.innerHTML = ''; - - // do not use inline function because that will leak memory - el.attachEvent('onpropertychange', onPropertyChange); - el.attachEvent('onresize', onResize); - - var attrs = el.attributes; - if (attrs.width && attrs.width.specified) { - // TODO: use runtimeStyle and coordsize - // el.getContext().setWidth_(attrs.width.nodeValue); - el.style.width = attrs.width.nodeValue + 'px'; - } else { - el.width = el.clientWidth; - } - if (attrs.height && attrs.height.specified) { - // TODO: use runtimeStyle and coordsize - // el.getContext().setHeight_(attrs.height.nodeValue); - el.style.height = attrs.height.nodeValue + 'px'; - } else { - el.height = el.clientHeight; - } - //el.getContext().setCoordsize_() - } - return el; - } - }; - - function onPropertyChange(e) { - var el = e.srcElement; - - switch (e.propertyName) { - case 'width': - el.getContext().clearRect(); - el.style.width = el.attributes.width.nodeValue + 'px'; - // In IE8 this does not trigger onresize. - el.firstChild.style.width = el.clientWidth + 'px'; - break; - case 'height': - el.getContext().clearRect(); - el.style.height = el.attributes.height.nodeValue + 'px'; - el.firstChild.style.height = el.clientHeight + 'px'; - break; - } - } - - function onResize(e) { - var el = e.srcElement; - if (el.firstChild) { - el.firstChild.style.width = el.clientWidth + 'px'; - el.firstChild.style.height = el.clientHeight + 'px'; - } - } - - G_vmlCanvasManager_.init(); - - // precompute "00" to "FF" - var decToHex = []; - for (var i = 0; i < 16; i++) { - for (var j = 0; j < 16; j++) { - decToHex[i * 16 + j] = i.toString(16) + j.toString(16); - } - } - - function createMatrixIdentity() { - return [ - [1, 0, 0], - [0, 1, 0], - [0, 0, 1] - ]; - } - - function matrixMultiply(m1, m2) { - var result = createMatrixIdentity(); - - for (var x = 0; x < 3; x++) { - for (var y = 0; y < 3; y++) { - var sum = 0; - - for (var z = 0; z < 3; z++) { - sum += m1[x][z] * m2[z][y]; - } - - result[x][y] = sum; - } - } - return result; - } - - function copyState(o1, o2) { - o2.fillStyle = o1.fillStyle; - o2.lineCap = o1.lineCap; - o2.lineJoin = o1.lineJoin; - o2.lineWidth = o1.lineWidth; - o2.miterLimit = o1.miterLimit; - o2.shadowBlur = o1.shadowBlur; - o2.shadowColor = o1.shadowColor; - o2.shadowOffsetX = o1.shadowOffsetX; - o2.shadowOffsetY = o1.shadowOffsetY; - o2.strokeStyle = o1.strokeStyle; - o2.globalAlpha = o1.globalAlpha; - o2.font = o1.font; - o2.textAlign = o1.textAlign; - o2.textBaseline = o1.textBaseline; - o2.arcScaleX_ = o1.arcScaleX_; - o2.arcScaleY_ = o1.arcScaleY_; - o2.lineScale_ = o1.lineScale_; - } - - var colorData = { - aliceblue: '#F0F8FF', - antiquewhite: '#FAEBD7', - aquamarine: '#7FFFD4', - azure: '#F0FFFF', - beige: '#F5F5DC', - bisque: '#FFE4C4', - black: '#000000', - blanchedalmond: '#FFEBCD', - blueviolet: '#8A2BE2', - brown: '#A52A2A', - burlywood: '#DEB887', - cadetblue: '#5F9EA0', - chartreuse: '#7FFF00', - chocolate: '#D2691E', - coral: '#FF7F50', - cornflowerblue: '#6495ED', - cornsilk: '#FFF8DC', - crimson: '#DC143C', - cyan: '#00FFFF', - darkblue: '#00008B', - darkcyan: '#008B8B', - darkgoldenrod: '#B8860B', - darkgray: '#A9A9A9', - darkgreen: '#006400', - darkgrey: '#A9A9A9', - darkkhaki: '#BDB76B', - darkmagenta: '#8B008B', - darkolivegreen: '#556B2F', - darkorange: '#FF8C00', - darkorchid: '#9932CC', - darkred: '#8B0000', - darksalmon: '#E9967A', - darkseagreen: '#8FBC8F', - darkslateblue: '#483D8B', - darkslategray: '#2F4F4F', - darkslategrey: '#2F4F4F', - darkturquoise: '#00CED1', - darkviolet: '#9400D3', - deeppink: '#FF1493', - deepskyblue: '#00BFFF', - dimgray: '#696969', - dimgrey: '#696969', - dodgerblue: '#1E90FF', - firebrick: '#B22222', - floralwhite: '#FFFAF0', - forestgreen: '#228B22', - gainsboro: '#DCDCDC', - ghostwhite: '#F8F8FF', - gold: '#FFD700', - goldenrod: '#DAA520', - grey: '#808080', - greenyellow: '#ADFF2F', - honeydew: '#F0FFF0', - hotpink: '#FF69B4', - indianred: '#CD5C5C', - indigo: '#4B0082', - ivory: '#FFFFF0', - khaki: '#F0E68C', - lavender: '#E6E6FA', - lavenderblush: '#FFF0F5', - lawngreen: '#7CFC00', - lemonchiffon: '#FFFACD', - lightblue: '#ADD8E6', - lightcoral: '#F08080', - lightcyan: '#E0FFFF', - lightgoldenrodyellow: '#FAFAD2', - lightgreen: '#90EE90', - lightgrey: '#D3D3D3', - lightpink: '#FFB6C1', - lightsalmon: '#FFA07A', - lightseagreen: '#20B2AA', - lightskyblue: '#87CEFA', - lightslategray: '#778899', - lightslategrey: '#778899', - lightsteelblue: '#B0C4DE', - lightyellow: '#FFFFE0', - limegreen: '#32CD32', - linen: '#FAF0E6', - magenta: '#FF00FF', - mediumaquamarine: '#66CDAA', - mediumblue: '#0000CD', - mediumorchid: '#BA55D3', - mediumpurple: '#9370DB', - mediumseagreen: '#3CB371', - mediumslateblue: '#7B68EE', - mediumspringgreen: '#00FA9A', - mediumturquoise: '#48D1CC', - mediumvioletred: '#C71585', - midnightblue: '#191970', - mintcream: '#F5FFFA', - mistyrose: '#FFE4E1', - moccasin: '#FFE4B5', - navajowhite: '#FFDEAD', - oldlace: '#FDF5E6', - olivedrab: '#6B8E23', - orange: '#FFA500', - orangered: '#FF4500', - orchid: '#DA70D6', - palegoldenrod: '#EEE8AA', - palegreen: '#98FB98', - paleturquoise: '#AFEEEE', - palevioletred: '#DB7093', - papayawhip: '#FFEFD5', - peachpuff: '#FFDAB9', - peru: '#CD853F', - pink: '#FFC0CB', - plum: '#DDA0DD', - powderblue: '#B0E0E6', - rosybrown: '#BC8F8F', - royalblue: '#4169E1', - saddlebrown: '#8B4513', - salmon: '#FA8072', - sandybrown: '#F4A460', - seagreen: '#2E8B57', - seashell: '#FFF5EE', - sienna: '#A0522D', - skyblue: '#87CEEB', - slateblue: '#6A5ACD', - slategray: '#708090', - slategrey: '#708090', - snow: '#FFFAFA', - springgreen: '#00FF7F', - steelblue: '#4682B4', - tan: '#D2B48C', - thistle: '#D8BFD8', - tomato: '#FF6347', - turquoise: '#40E0D0', - violet: '#EE82EE', - wheat: '#F5DEB3', - whitesmoke: '#F5F5F5', - yellowgreen: '#9ACD32' - }; - - - function getRgbHslContent(styleString) { - var start = styleString.indexOf('(', 3); - var end = styleString.indexOf(')', start + 1); - var parts = styleString.substring(start + 1, end).split(','); - // add alpha if needed - if (parts.length == 4 && styleString.substr(3, 1) == 'a') { - alpha = Number(parts[3]); - } else { - parts[3] = 1; - } - return parts; - } - - function percent(s) { - return parseFloat(s) / 100; - } - - function clamp(v, min, max) { - return Math.min(max, Math.max(min, v)); - } - - function hslToRgb(parts){ - var r, g, b; - h = parseFloat(parts[0]) / 360 % 360; - if (h < 0) - h++; - s = clamp(percent(parts[1]), 0, 1); - l = clamp(percent(parts[2]), 0, 1); - if (s == 0) { - r = g = b = l; // achromatic - } else { - var q = l < 0.5 ? l * (1 + s) : l + s - l * s; - var p = 2 * l - q; - r = hueToRgb(p, q, h + 1 / 3); - g = hueToRgb(p, q, h); - b = hueToRgb(p, q, h - 1 / 3); - } - - return '#' + decToHex[Math.floor(r * 255)] + - decToHex[Math.floor(g * 255)] + - decToHex[Math.floor(b * 255)]; - } - - function hueToRgb(m1, m2, h) { - if (h < 0) - h++; - if (h > 1) - h--; - - if (6 * h < 1) - return m1 + (m2 - m1) * 6 * h; - else if (2 * h < 1) - return m2; - else if (3 * h < 2) - return m1 + (m2 - m1) * (2 / 3 - h) * 6; - else - return m1; - } - - function processStyle(styleString) { - var str, alpha = 1; - - styleString = String(styleString); - if (styleString.charAt(0) == '#') { - str = styleString; - } else if (/^rgb/.test(styleString)) { - var parts = getRgbHslContent(styleString); - var str = '#', n; - for (var i = 0; i < 3; i++) { - if (parts[i].indexOf('%') != -1) { - n = Math.floor(percent(parts[i]) * 255); - } else { - n = Number(parts[i]); - } - str += decToHex[clamp(n, 0, 255)]; - } - alpha = parts[3]; - } else if (/^hsl/.test(styleString)) { - var parts = getRgbHslContent(styleString); - str = hslToRgb(parts); - alpha = parts[3]; - } else { - str = colorData[styleString] || styleString; - } - return {color: str, alpha: alpha}; - } - - var DEFAULT_STYLE = { - style: 'normal', - variant: 'normal', - weight: 'normal', - size: 10, - family: 'sans-serif' - }; - - // Internal text style cache - var fontStyleCache = {}; - - function processFontStyle(styleString) { - if (fontStyleCache[styleString]) { - return fontStyleCache[styleString]; - } - - var el = document.createElement('div'); - var style = el.style; - try { - style.font = styleString; - } catch (ex) { - // Ignore failures to set to invalid font. - } - - return fontStyleCache[styleString] = { - style: style.fontStyle || DEFAULT_STYLE.style, - variant: style.fontVariant || DEFAULT_STYLE.variant, - weight: style.fontWeight || DEFAULT_STYLE.weight, - size: style.fontSize || DEFAULT_STYLE.size, - family: style.fontFamily || DEFAULT_STYLE.family - }; - } - - function getComputedStyle(style, element) { - var computedStyle = {}; - - for (var p in style) { - computedStyle[p] = style[p]; - } - - // Compute the size - var canvasFontSize = parseFloat(element.currentStyle.fontSize), - fontSize = parseFloat(style.size); - - if (typeof style.size == 'number') { - computedStyle.size = style.size; - } else if (style.size.indexOf('px') != -1) { - computedStyle.size = fontSize; - } else if (style.size.indexOf('em') != -1) { - computedStyle.size = canvasFontSize * fontSize; - } else if(style.size.indexOf('%') != -1) { - computedStyle.size = (canvasFontSize / 100) * fontSize; - } else if (style.size.indexOf('pt') != -1) { - computedStyle.size = fontSize / .75; - } else { - computedStyle.size = canvasFontSize; - } - - // Different scaling between normal text and VML text. This was found using - // trial and error to get the same size as non VML text. - computedStyle.size *= 0.981; - - return computedStyle; - } - - function buildStyle(style) { - return style.style + ' ' + style.variant + ' ' + style.weight + ' ' + - style.size + 'px ' + style.family; - } - - function processLineCap(lineCap) { - switch (lineCap) { - case 'butt': - return 'flat'; - case 'round': - return 'round'; - case 'square': - default: - return 'square'; - } - } - - /** - * This class implements CanvasRenderingContext2D interface as described by - * the WHATWG. - * @param {HTMLElement} surfaceElement The element that the 2D context should - * be associated with - */ - function CanvasRenderingContext2D_(surfaceElement) { - this.m_ = createMatrixIdentity(); - - this.mStack_ = []; - this.aStack_ = []; - this.currentPath_ = []; - - // Canvas context properties - this.strokeStyle = '#000'; - this.fillStyle = '#000'; - - this.lineWidth = 1; - this.lineJoin = 'miter'; - this.lineCap = 'butt'; - this.miterLimit = Z * 1; - this.globalAlpha = 1; - this.font = '10px sans-serif'; - this.textAlign = 'left'; - this.textBaseline = 'alphabetic'; - this.canvas = surfaceElement; - - var el = surfaceElement.ownerDocument.createElement('div'); - el.style.width = surfaceElement.clientWidth + 'px'; - el.style.height = surfaceElement.clientHeight + 'px'; - el.style.overflow = 'hidden'; - el.style.position = 'absolute'; - surfaceElement.appendChild(el); - - this.element_ = el; - this.arcScaleX_ = 1; - this.arcScaleY_ = 1; - this.lineScale_ = 1; - } - - var contextPrototype = CanvasRenderingContext2D_.prototype; - contextPrototype.clearRect = function() { - if (this.textMeasureEl_) { - this.textMeasureEl_.removeNode(true); - this.textMeasureEl_ = null; - } - this.element_.innerHTML = ''; - }; - - contextPrototype.beginPath = function() { - // TODO: Branch current matrix so that save/restore has no effect - // as per safari docs. - this.currentPath_ = []; - }; - - contextPrototype.moveTo = function(aX, aY) { - var p = this.getCoords_(aX, aY); - this.currentPath_.push({type: 'moveTo', x: p.x, y: p.y}); - this.currentX_ = p.x; - this.currentY_ = p.y; - }; - - contextPrototype.lineTo = function(aX, aY) { - var p = this.getCoords_(aX, aY); - this.currentPath_.push({type: 'lineTo', x: p.x, y: p.y}); - - this.currentX_ = p.x; - this.currentY_ = p.y; - }; - - contextPrototype.bezierCurveTo = function(aCP1x, aCP1y, - aCP2x, aCP2y, - aX, aY) { - var p = this.getCoords_(aX, aY); - var cp1 = this.getCoords_(aCP1x, aCP1y); - var cp2 = this.getCoords_(aCP2x, aCP2y); - bezierCurveTo(this, cp1, cp2, p); - }; - - // Helper function that takes the already fixed cordinates. - function bezierCurveTo(self, cp1, cp2, p) { - self.currentPath_.push({ - type: 'bezierCurveTo', - cp1x: cp1.x, - cp1y: cp1.y, - cp2x: cp2.x, - cp2y: cp2.y, - x: p.x, - y: p.y - }); - self.currentX_ = p.x; - self.currentY_ = p.y; - } - - contextPrototype.quadraticCurveTo = function(aCPx, aCPy, aX, aY) { - // the following is lifted almost directly from - // http://developer.mozilla.org/en/docs/Canvas_tutorial:Drawing_shapes - - var cp = this.getCoords_(aCPx, aCPy); - var p = this.getCoords_(aX, aY); - - var cp1 = { - x: this.currentX_ + 2.0 / 3.0 * (cp.x - this.currentX_), - y: this.currentY_ + 2.0 / 3.0 * (cp.y - this.currentY_) - }; - var cp2 = { - x: cp1.x + (p.x - this.currentX_) / 3.0, - y: cp1.y + (p.y - this.currentY_) / 3.0 - }; - - bezierCurveTo(this, cp1, cp2, p); - }; - - contextPrototype.arc = function(aX, aY, aRadius, - aStartAngle, aEndAngle, aClockwise) { - aRadius *= Z; - var arcType = aClockwise ? 'at' : 'wa'; - - var xStart = aX + mc(aStartAngle) * aRadius - Z2; - var yStart = aY + ms(aStartAngle) * aRadius - Z2; - - var xEnd = aX + mc(aEndAngle) * aRadius - Z2; - var yEnd = aY + ms(aEndAngle) * aRadius - Z2; - - // IE won't render arches drawn counter clockwise if xStart == xEnd. - if (xStart == xEnd && !aClockwise) { - xStart += 0.125; // Offset xStart by 1/80 of a pixel. Use something - // that can be represented in binary - } - - var p = this.getCoords_(aX, aY); - var pStart = this.getCoords_(xStart, yStart); - var pEnd = this.getCoords_(xEnd, yEnd); - - this.currentPath_.push({type: arcType, - x: p.x, - y: p.y, - radius: aRadius, - xStart: pStart.x, - yStart: pStart.y, - xEnd: pEnd.x, - yEnd: pEnd.y}); - - }; - - contextPrototype.rect = function(aX, aY, aWidth, aHeight) { - this.moveTo(aX, aY); - this.lineTo(aX + aWidth, aY); - this.lineTo(aX + aWidth, aY + aHeight); - this.lineTo(aX, aY + aHeight); - this.closePath(); - }; - - contextPrototype.strokeRect = function(aX, aY, aWidth, aHeight) { - var oldPath = this.currentPath_; - this.beginPath(); - - this.moveTo(aX, aY); - this.lineTo(aX + aWidth, aY); - this.lineTo(aX + aWidth, aY + aHeight); - this.lineTo(aX, aY + aHeight); - this.closePath(); - this.stroke(); - - this.currentPath_ = oldPath; - }; - - contextPrototype.fillRect = function(aX, aY, aWidth, aHeight) { - var oldPath = this.currentPath_; - this.beginPath(); - - this.moveTo(aX, aY); - this.lineTo(aX + aWidth, aY); - this.lineTo(aX + aWidth, aY + aHeight); - this.lineTo(aX, aY + aHeight); - this.closePath(); - this.fill(); - - this.currentPath_ = oldPath; - }; - - contextPrototype.createLinearGradient = function(aX0, aY0, aX1, aY1) { - var gradient = new CanvasGradient_('gradient'); - gradient.x0_ = aX0; - gradient.y0_ = aY0; - gradient.x1_ = aX1; - gradient.y1_ = aY1; - return gradient; - }; - - contextPrototype.createRadialGradient = function(aX0, aY0, aR0, - aX1, aY1, aR1) { - var gradient = new CanvasGradient_('gradientradial'); - gradient.x0_ = aX0; - gradient.y0_ = aY0; - gradient.r0_ = aR0; - gradient.x1_ = aX1; - gradient.y1_ = aY1; - gradient.r1_ = aR1; - return gradient; - }; - - contextPrototype.drawImage = function(image, var_args) { - var dx, dy, dw, dh, sx, sy, sw, sh; - - // to find the original width we overide the width and height - var oldRuntimeWidth = image.runtimeStyle.width; - var oldRuntimeHeight = image.runtimeStyle.height; - image.runtimeStyle.width = 'auto'; - image.runtimeStyle.height = 'auto'; - - // get the original size - var w = image.width; - var h = image.height; - - // and remove overides - image.runtimeStyle.width = oldRuntimeWidth; - image.runtimeStyle.height = oldRuntimeHeight; - - if (arguments.length == 3) { - dx = arguments[1]; - dy = arguments[2]; - sx = sy = 0; - sw = dw = w; - sh = dh = h; - } else if (arguments.length == 5) { - dx = arguments[1]; - dy = arguments[2]; - dw = arguments[3]; - dh = arguments[4]; - sx = sy = 0; - sw = w; - sh = h; - } else if (arguments.length == 9) { - sx = arguments[1]; - sy = arguments[2]; - sw = arguments[3]; - sh = arguments[4]; - dx = arguments[5]; - dy = arguments[6]; - dw = arguments[7]; - dh = arguments[8]; - } else { - throw Error('Invalid number of arguments'); - } - - var d = this.getCoords_(dx, dy); - - var w2 = sw / 2; - var h2 = sh / 2; - - var vmlStr = []; - - var W = 10; - var H = 10; - - // For some reason that I've now forgotten, using divs didn't work - vmlStr.push(' ' , - '', - ''); - - this.element_.insertAdjacentHTML('BeforeEnd', vmlStr.join('')); - }; - - contextPrototype.stroke = function(aFill) { - var W = 10; - var H = 10; - // Divide the shape into chunks if it's too long because IE has a limit - // somewhere for how long a VML shape can be. This simple division does - // not work with fills, only strokes, unfortunately. - var chunkSize = 5000; - - var min = {x: null, y: null}; - var max = {x: null, y: null}; - - for (var j = 0; j < this.currentPath_.length; j += chunkSize) { - var lineStr = []; - var lineOpen = false; - - lineStr.push(''); - - if (!aFill) { - appendStroke(this, lineStr); - } else { - appendFill(this, lineStr, min, max); - } - - lineStr.push(''); - - this.element_.insertAdjacentHTML('beforeEnd', lineStr.join('')); - } - }; - - function appendStroke(ctx, lineStr) { - var a = processStyle(ctx.strokeStyle); - var color = a.color; - var opacity = a.alpha * ctx.globalAlpha; - var lineWidth = ctx.lineScale_ * ctx.lineWidth; - - // VML cannot correctly render a line if the width is less than 1px. - // In that case, we dilute the color to make the line look thinner. - if (lineWidth < 1) { - opacity *= lineWidth; - } - - lineStr.push( - '' - ); - } - - function appendFill(ctx, lineStr, min, max) { - var fillStyle = ctx.fillStyle; - var arcScaleX = ctx.arcScaleX_; - var arcScaleY = ctx.arcScaleY_; - var width = max.x - min.x; - var height = max.y - min.y; - if (fillStyle instanceof CanvasGradient_) { - // TODO: Gradients transformed with the transformation matrix. - var angle = 0; - var focus = {x: 0, y: 0}; - - // additional offset - var shift = 0; - // scale factor for offset - var expansion = 1; - - if (fillStyle.type_ == 'gradient') { - var x0 = fillStyle.x0_ / arcScaleX; - var y0 = fillStyle.y0_ / arcScaleY; - var x1 = fillStyle.x1_ / arcScaleX; - var y1 = fillStyle.y1_ / arcScaleY; - var p0 = ctx.getCoords_(x0, y0); - var p1 = ctx.getCoords_(x1, y1); - var dx = p1.x - p0.x; - var dy = p1.y - p0.y; - angle = Math.atan2(dx, dy) * 180 / Math.PI; - - // The angle should be a non-negative number. - if (angle < 0) { - angle += 360; - } - - // Very small angles produce an unexpected result because they are - // converted to a scientific notation string. - if (angle < 1e-6) { - angle = 0; - } - } else { - var p0 = ctx.getCoords_(fillStyle.x0_, fillStyle.y0_); - focus = { - x: (p0.x - min.x) / width, - y: (p0.y - min.y) / height - }; - - width /= arcScaleX * Z; - height /= arcScaleY * Z; - var dimension = m.max(width, height); - shift = 2 * fillStyle.r0_ / dimension; - expansion = 2 * fillStyle.r1_ / dimension - shift; - } - - // We need to sort the color stops in ascending order by offset, - // otherwise IE won't interpret it correctly. - var stops = fillStyle.colors_; - stops.sort(function(cs1, cs2) { - return cs1.offset - cs2.offset; - }); - - var length = stops.length; - var color1 = stops[0].color; - var color2 = stops[length - 1].color; - var opacity1 = stops[0].alpha * ctx.globalAlpha; - var opacity2 = stops[length - 1].alpha * ctx.globalAlpha; - - var colors = []; - for (var i = 0; i < length; i++) { - var stop = stops[i]; - colors.push(stop.offset * expansion + shift + ' ' + stop.color); - } - - // When colors attribute is used, the meanings of opacity and o:opacity2 - // are reversed. - lineStr.push(''); - } else if (fillStyle instanceof CanvasPattern_) { - if (width && height) { - var deltaLeft = -min.x; - var deltaTop = -min.y; - lineStr.push(''); - } - } else { - var a = processStyle(ctx.fillStyle); - var color = a.color; - var opacity = a.alpha * ctx.globalAlpha; - lineStr.push(''); - } - } - - contextPrototype.fill = function() { - this.stroke(true); - }; - - contextPrototype.closePath = function() { - this.currentPath_.push({type: 'close'}); - }; - - /** - * @private - */ - contextPrototype.getCoords_ = function(aX, aY) { - var m = this.m_; - return { - x: Z * (aX * m[0][0] + aY * m[1][0] + m[2][0]) - Z2, - y: Z * (aX * m[0][1] + aY * m[1][1] + m[2][1]) - Z2 - }; - }; - - contextPrototype.save = function() { - var o = {}; - copyState(this, o); - this.aStack_.push(o); - this.mStack_.push(this.m_); - this.m_ = matrixMultiply(createMatrixIdentity(), this.m_); - }; - - contextPrototype.restore = function() { - if (this.aStack_.length) { - copyState(this.aStack_.pop(), this); - this.m_ = this.mStack_.pop(); - } - }; - - function matrixIsFinite(m) { - return isFinite(m[0][0]) && isFinite(m[0][1]) && - isFinite(m[1][0]) && isFinite(m[1][1]) && - isFinite(m[2][0]) && isFinite(m[2][1]); - } - - function setM(ctx, m, updateLineScale) { - if (!matrixIsFinite(m)) { - return; - } - ctx.m_ = m; - - if (updateLineScale) { - // Get the line scale. - // Determinant of this.m_ means how much the area is enlarged by the - // transformation. So its square root can be used as a scale factor - // for width. - var det = m[0][0] * m[1][1] - m[0][1] * m[1][0]; - ctx.lineScale_ = sqrt(abs(det)); - } - } - - contextPrototype.translate = function(aX, aY) { - var m1 = [ - [1, 0, 0], - [0, 1, 0], - [aX, aY, 1] - ]; - - setM(this, matrixMultiply(m1, this.m_), false); - }; - - contextPrototype.rotate = function(aRot) { - var c = mc(aRot); - var s = ms(aRot); - - var m1 = [ - [c, s, 0], - [-s, c, 0], - [0, 0, 1] - ]; - - setM(this, matrixMultiply(m1, this.m_), false); - }; - - contextPrototype.scale = function(aX, aY) { - this.arcScaleX_ *= aX; - this.arcScaleY_ *= aY; - var m1 = [ - [aX, 0, 0], - [0, aY, 0], - [0, 0, 1] - ]; - - setM(this, matrixMultiply(m1, this.m_), true); - }; - - contextPrototype.transform = function(m11, m12, m21, m22, dx, dy) { - var m1 = [ - [m11, m12, 0], - [m21, m22, 0], - [dx, dy, 1] - ]; - - setM(this, matrixMultiply(m1, this.m_), true); - }; - - contextPrototype.setTransform = function(m11, m12, m21, m22, dx, dy) { - var m = [ - [m11, m12, 0], - [m21, m22, 0], - [dx, dy, 1] - ]; - - setM(this, m, true); - }; - - /** - * The text drawing function. - * The maxWidth argument isn't taken in account, since no browser supports - * it yet. - */ - contextPrototype.drawText_ = function(text, x, y, maxWidth, stroke) { - var m = this.m_, - delta = 1000, - left = 0, - right = delta, - offset = {x: 0, y: 0}, - lineStr = []; - - var fontStyle = getComputedStyle(processFontStyle(this.font), - this.element_); - - var fontStyleString = buildStyle(fontStyle); - - var elementStyle = this.element_.currentStyle; - var textAlign = this.textAlign.toLowerCase(); - switch (textAlign) { - case 'left': - case 'center': - case 'right': - break; - case 'end': - textAlign = elementStyle.direction == 'ltr' ? 'right' : 'left'; - break; - case 'start': - textAlign = elementStyle.direction == 'rtl' ? 'right' : 'left'; - break; - default: - textAlign = 'left'; - } - - // 1.75 is an arbitrary number, as there is no info about the text baseline - switch (this.textBaseline) { - case 'hanging': - case 'top': - offset.y = fontStyle.size / 1.75; - break; - case 'middle': - break; - default: - case null: - case 'alphabetic': - case 'ideographic': - case 'bottom': - offset.y = -fontStyle.size / 2.25; - break; -